Tasco...
Agreed. They try to sell things with performance claims that are well beyond the optically possible and I would never buy any prduct of theirs on that basis alone. Here is an extract from this article for example:
"Tasco 525 X 60 Telescope
525X magnification. 60mm objective lens.
Optimum usage up to 185X magnification." etc.
I can't see why the law does not protect against this kind of advert. Whilst it cannot be claimed that the advertisement gives false information, if you simply do the sums it will magnify 525X. The fact is the instrument will be totally unusable for astronomy at this magnification, which amounts to the same thing!
The worst of it is that, in order to support these claims the instrument is sold with a set of accessories that do not allow it to operate within its true optimum range.
... common brand of cheap optics in the UK. Cheap, being the operative word. Avoid IMO.
Agreed. They try to sell things with performance claims that are well beyond the optically possible and I would never buy any prduct of theirs on that basis alone. Here is an extract from this article for example:
"Tasco 525 X 60 Telescope
525X magnification. 60mm objective lens.
Optimum usage up to 185X magnification." etc.
I can't see why the law does not protect against this kind of advert. Whilst it cannot be claimed that the advertisement gives false information, if you simply do the sums it will magnify 525X. The fact is the instrument will be totally unusable for astronomy at this magnification, which amounts to the same thing!
The worst of it is that, in order to support these claims the instrument is sold with a set of accessories that do not allow it to operate within its true optimum range.